Initial commit: EGBE chatbot template

Stripped from vercel/chatbot (Apache 2.0):
- Dropped @vercel/* packages and AI Gateway
- Removed artifacts feature (code/text/sheet/image side panel)
- Switched AI provider to @ai-sdk/openai-compatible -> EGBE LiteLLM
- Replaced Vercel Blob upload with data URLs
- Dropped Redis resumable streams and rate limiter (in-memory now)
- Added Dockerfile (Next.js standalone) + entrypoint that runs migrations
- Wired DATABASE_URL, EGBE_AI_API_URL/KEY, NEXT_PUBLIC_BASE_URL for app-deploy.sh

app/(chat)/api/history/route.ts

@@ -0,0 +1,49 @@
+import type { NextRequest } from "next/server";
+import { auth } from "@/app/(auth)/auth";
+import { deleteAllChatsByUserId, getChatsByUserId } from "@/lib/db/queries";
+import { ChatbotError } from "@/lib/errors";
+
+export async function GET(request: NextRequest) {
+  const { searchParams } = request.nextUrl;
+
+  const limit = Math.min(
+    Math.max(Number.parseInt(searchParams.get("limit") || "10", 10), 1),
+    50
+  );
+  const startingAfter = searchParams.get("starting_after");
+  const endingBefore = searchParams.get("ending_before");
+
+  if (startingAfter && endingBefore) {
+    return new ChatbotError(
+      "bad_request:api",
+      "Only one of starting_after or ending_before can be provided."
+    ).toResponse();
+  }
+
+  const session = await auth();
+
+  if (!session?.user) {
+    return new ChatbotError("unauthorized:chat").toResponse();
+  }
+
+  const chats = await getChatsByUserId({
+    id: session.user.id,
+    limit,
+    startingAfter,
+    endingBefore,
+  });
+
+  return Response.json(chats);
+}
+
+export async function DELETE() {
+  const session = await auth();
+
+  if (!session?.user) {
+    return new ChatbotError("unauthorized:chat").toResponse();
+  }
+
+  const result = await deleteAllChatsByUserId({ userId: session.user.id });
+
+  return Response.json(result, { status: 200 });
+}